JPH0415877B2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field]

The present invention relates to an improvement in an automobile side door hinge that utilizes a four-bar rotation link.

[Conventional technology]

Conventionally, side doors in automobiles, such as passenger cars, have been installed so that they rotate and open/close around a single hinge fixed to the body in most cases. In order to do this, the door opening angle must match the total length of the side door. At this time, if the space on the side of the car is narrow, the door cannot be opened sufficiently, making it difficult for passengers to get in and out of the vehicle. There are many. On the other hand, as disclosed in, for example, Japanese Utility Model Application Publication No. 57-46014 or No. 55-101263, two points separated from each other on the body side of the automobile and two points separated from each other on the side door side of the automobile are disclosed. Among the points, a rotation link that connects one point of each of the body and the side door as the rotation center, a rotation link that connects the other one point as the rotation center, and a portion between the two rotation centers on the body side. An automobile side door hinge has been proposed in which a four-bar rotation link is formed by a portion between two rotation centers of the side door. Side door hinges that use this kind of four-section rotating link secure space for the occupants' feet, while
The required space on the side of the vehicle can be reduced, and therefore, even if the space on the side of the vehicle is narrow, passengers can get in and out by opening and closing the side door. In a side door hinge using a four-bar rotation link as described above, the rotation center axis on the side door side is separated from the rotation center axis on the body side by the length of the rotation link, so the side door hinge is separated from the rotation center axis on the body side by the length of the rotation link. The moment based on the load increases, and this moment also applies a large load to the mounting portion of the rotating shaft on the side door side. Therefore, in order to increase the support rigidity of the side door, it is necessary to arrange multiple door hinges in the vertical direction.
must be installed. However, when multiple side door hinges are installed vertically in this way, their rotational axes must be aligned vertically,
There is a problem that the installation work and adjustment are complicated. Furthermore, the mounting surfaces of the rotation center shaft on the body side and the side door side, especially the mounting surface on the side door side, must have considerably high rigidity, and in order to satisfy this requirement, the weight of the side door Another problem arises in that the weight of the door hinge must be increased. That is, if the rigidity of the side door is small, combined with the long length of the door hinge, that is, the rotation link,
For example, when the side door is opened, the vertical stiffness, torsional stiffness, and over-opening stiffness of the side door are reduced.
There is a problem in that the side door is displaced downward, twisted, or deformed when fully opened. Furthermore, even when the door is closed, if the rigidity is small,
There is a problem in that it is difficult to attach it to the body.

[Problems to be solved by the invention]

The present invention has been made in view of the above-mentioned conventional problems, and does not significantly increase the weight of the side door, is easy to install and adjust, and is sufficient to support the side door. The purpose of the present invention is to provide a side door hinge for an automobile that has high rigidity.

[Means for Solving the Problems] The present invention is a double arm type using a four-section rotating link, and one of the double arms is
In an automobile side door hinge, the main arm mainly supports the load of the side door, and the other arm is the control arm that mainly controls the movement of the side door. a door side base formed long in the direction and attached to the end;
The body side base is formed vertically long along the body side surface adjacent to the end portion, and is supported at at least two locations each at the upper and lower portions of the body side base attached to the surface, and the door side base and the body side base. and four lower rotation center axes aligned below the upper rotation center axes, and the control arm has four upper rotation center axes aligned below the upper rotation center axes, and the control arm is connected to the body side of the upper rotation center axes. An upper control arm whose both ends are rotatably connected to one rotational axis of each of the base and door side base, and whose both ends rotate about the lower rotational axis which is aligned with the upper rotational axis of both ends of the upper control arm. It consists of a lower control arm that is freely connected to the other upper rotation center shaft, and the main arm is rotatably connected to the other two lower rotation center shafts at both upper and lower widthwise ends. The above object is achieved by configuring a side door hinge of an automobile as an integral member in the vertical direction.

[Effect]

In this invention, the rotating shafts of the upper and lower 4-link door hinges are supported by the door side base attached to the side door side and the body side base attached to the body side, so that the rotating shaft is a vertically long unit. A door hinge is formed, which facilitates assembly and adjustment, increases the rigidity of the hinge itself, and increases the assembly rigidity when attached to the side door and the body.

【Example】

Embodiments of the present invention will be described below with reference to the drawings. As shown in FIGS. 1 to 4, this embodiment is a double arm type using a four-bar rotation link, and one of the double arms is the main arm that mainly supports the load of the side door. The other side is a side door hinge 10 for an automobile that is mainly used as a control arm for controlling the movement of a side door, along an end panel 14 that is the end of the swing base end of a side door 12 of an automobile (whole illustration is omitted). It is formed long in the vertical direction, and
A door side base 16 is attached to the end panel 14, and a body side base 20 is formed long in the vertical direction along the surface 18A of the front pillar 18 on the body side adjacent to the end panel 14 and is attached to the surface 18A. and four upper rotation center shafts 22A, 24A, 26A, 28A supported at two locations each at the upper and lower portions of the door side base 16 and body side base 20, and the upper rotation center shafts 22A, 24A, 26A, 28
Four lower rotation center shafts 22 aligned below A
B, 24B, 26B, and 28B, and the control arm is connected to the upper rotation center shaft 22A,
Among 24A, 26A, and 28A, upper rotation center shafts 22A, 26A on the outside in the vehicle body width direction of the door side base 16 and the body side base 20, respectively.
an upper control arm 30A whose both ends are rotatably connected to the upper control arm 3;
a lower control arm 30B whose both ends are rotatably connected to the lower rotational center axes 22B, 26B aligned with the upper rotational center axes 22A, 26A at both ends of the main arm 30; It is constructed from a vertically integrated member whose upper and lower and widthwise ends are rotatably connected to the central shafts 24A, 28A and the lower rotational central shafts 24B, 28B. Here, as shown in FIGS. 2 and 3,
Inner panel 12 in the side door 12
A and the outer panel 12B extend further forward than the end panel 14 and along the outer surface to form an extension portion 12C. This extension 1
2C has front side fender 11 when the door is opened.
The front end is positioned near the front end of the front pillar 18 in the longitudinal direction of the vehicle body, and the side door hinge 10 is housed between it and the outer surface 18A of the front pillar 18. A space 34 is formed. The main arm 32 includes the upper control arm 30A and the lower control arm 30.
It is located inside in the vehicle width direction than B, and when viewed from above,
When the side door 12 is in the closed state, the front pillar 18 is curved so that its outer side is convex along the posterolateral corner and along the surface 18A. That is, when the side door 12 is fully closed, the main arm 32 on the inside in the width direction of the vehicle body does not interfere with the front pillar 18, and the front pillar 18
It is designed to be stored as close as possible to the On the other hand, the upper control arm 30 is disposed on the outside in the vehicle width direction with respect to the main arm 32.
A and the lower control arm 30B are connected to the front side fender 1 when the side door 12 is fully opened.
The side door 12 is slightly bent so as to be convex inward in the width direction of the vehicle body so as not to interfere with the rear end portion 11A of the vehicle body 1 and to allow the side door 12 in a fully open state to be slid as far forward as possible in the vehicle body. The door side base 16 is attached to the side door 12
The horizontal section along the shape of the end panel 14 is approximately crank-shaped, and the end panel 14 is provided with bolts ( (not shown) is tightened and fixed. The upper rotational center axes 22A, 24A are located in the vicinity of the upper bolt hole 16A in the door side base 16 and at a position offset downward from the bearing support portion 1 that extends horizontally.
7A is mounted and supported in a substantially vertical direction. Further, the lower rotation center shafts 22B and 24B are attached in a substantially vertical direction to a bearing support portion 17B that extends horizontally at a position offset above and near the bolt hole 16B on the lower side of the door side base 16. is supported by Further, the body side base 20 has two bolt holes 20A and 20A, respectively, at its upper and lower ends.
20B and one bolt hole 20C is formed near and below the upper end side bolt hole 20A, and bolts (not shown) inserted into these bolt holes 20A, 20B, and 20C connect the front pillar 18 to the outer side in the vehicle body width direction. It is adapted to be tightened and fixed to the surface 18A. Here, the upper half of the body side base 20 is bent at an obtuse angle in a horizontal section, thereby increasing cross-sectional rigidity. The upper rotational center axes 26A, 28A are located above the bolt hole 20C in the body side base 20, in the vicinity of the upper bolt hole 20A, and at a position offset below it, at a bearing support portion 21A that extends horizontally. The upper rotation center shafts 26A, 28A are supported in a substantially vertical direction. Further, in the vicinity of the lower bolt hole 20B in the body side base 20, a bearing support portion 21B extending in the horizontal direction is formed at a position offset above this. , to support the lower rotation center shafts 26B, 28 in a substantially vertical direction. The upper rotation center shafts 22A, 24A, 26A,
28A, lower rotation center shafts 22B, 24
B, 26B, and 28B are aligned on an inclined axis slightly inclined from the vertical axis so as to intersect at a virtual point 10A below the side door hinge 10. Reference numeral 36 in the figure indicates a lightening hole formed in each of the door side base 16 and the body side base 20 for weight reduction. The main arm 32 has a small diameter, and the upper and lower control arms 30A and 30B mainly bear the over-opening load and torsional load of the side door 12, and at the same time handle the weight moment of the side door 12 and the side door due to overload. 12 from twisting, and further controls the rocking locus of the side door 12, it is designed to mainly support the weight of the side door 12. Further, as shown in FIG. 4, the main arm 32 is approximately K-shaped, and the vertical side of the K-shape is as follows.
The upper end fitting hole 33A is a large diameter pipe portion 33 that is fitted to the upper rotation center shaft 28A on the body side, and the lower end fitting hole 33B is fitted to the lower rotation center shaft 28B on the body side, and The upper side of the K-shape is a substantially triangular upper arm 38A with a horizontal upper edge and an inclined lower edge, and a fitting hole 39A at the tip of the upper arm 38A.
Upper rotation center shaft 2 on the side of the door side base 16
The lower arm 38B is a substantially triangular lower arm 38B with an inclined upper edge and a horizontal lower edge. is mated to. A vertical gap is formed between the connection portions of the upper arm 38A and the lower arm 38B to the pipe portion 33. Further, the upper arm 38A is longer in the upward direction than the lower arm 38B, that is, has a larger vertical section, and is designed to mainly bear the load of the side door 12. The symbol 32A in the figure is the upper arm 3 for weight reduction.
8A and the cutout hole formed in the lower arm 38B, and 32B are the holes formed in the upper arm 38A and the lower arm 3.
8B shows reinforcing ribs formed to protrude in the thickness direction along the upper and lower edges of each of the plates 8B and 8B. Upper rotation center shafts 24A, 28A and lower rotation center shaft 24 for supporting the main arm 32.
B, 28B correspond to the corresponding bearing supports 17A, 21A, 17B and 21, as shown in FIG.
Serration 4 inserted into B from above and below
4A, a collar 44B, and an insertion portion 44C. Fitting holes 33A, 33B, 3 of main arm 32
A bush 46 (see FIG. 6) having a collar 46A inserted from the outer end side is press-fitted into 9A and 39B. The insertion portions 44C at the tips of the respective rotational center shafts 24B and 28B are inserted. The insertion portions 44C of the upper rotation center shafts 24A, 28A and the lower rotation center shafts 24B, 28B, which are inserted into the bush 46, have oil grooves 44D in the circumferential direction.
is formed and lubricating oil is enclosed. Additionally, four radial oil grooves 46 are provided at equal angular intervals in the circumferential direction on the outer end surface of the flange 46A of the bush 46 in a portion adjacent to the outer periphery of the insertion portion 44C.
B is formed (see Figure 6). Further, as shown in FIG. 7, the upper rotation center shafts 22A, 26A and the lower rotation center shafts 22B, 26B for supporting the upper control arm 30A and the lower control arm 30B are provided with a collar 48A and an insertion portion 48B, respectively. and a cantilever pin with serrations 48C. Further, a bush 50 having a collar 50A is press-fitted into both ends of the upper control arm 30A and the lower control arm 30B from the side of the bearing support parts 17A, 21A, 17B and 21B. The upper rotation center shafts 22A, 26A and the lower rotation center shafts 22B, 26B are inserted into the bush 50 at their insertion portions 48B, and the serrations 48C at the tips are inserted into the bearing support portion 17.
A, 21A, 17B, and 21B, respectively, and are fixed by caulking with the tips of the serrations 48C. An oil groove 48D is formed in the circumferential direction on the outer periphery of the insertion portion 48B, and four oil grooves 50B are also formed on the outer end surface of the collar 50A of the bushing 50 at equal angular intervals in the radial direction from the inner periphery. The lubricating oil that is formed is sealed. At the upper and lower ends of the pipe portion 33 of the main arm 32, stoppers 52A and 52B, which project horizontally, are formed, respectively. Corresponding to these stoppers 52A, 52B, a side door 1 is provided on the side of the body side base 20.
The protrusion 5 is formed with stopper surfaces 54A and 54B that the stoppers 52A and 52B come into contact with to restrict the fully open position of the side door 12 when the side door 12 is in the fully open position.
6A and 56B are provided. These protrusions 56A and 56B protrude at the corner between the lower surface of the bearing support section 21A and the inner surface of the body side base 20, and at the corner between the upper surface of the bearing support section 21B and the inner surface of the body side base 20, respectively. It is formed. Furthermore, the pipe portion 3 in the main arm 32
3, a door check mechanism 60 is constructed between a torsion bar hook 58 which is formed to protrude horizontally at a substantially central position in the vertical direction, and the bearing support portion 21A of the body side base 20. This door check mechanism 60 is composed of a torsion bar 62, a roller 64, and a cam plate 66. As shown in FIGS. 1 and 8, the torsion bar 62 has a generally U-shaped curling-shaped portion 62 whose tip is bent at a right angle at its lower end.
A, and by sandwiching the torsion bar hook 58 of the pipe portion 33 from above and below between the bottom side 63A of the U-shape and the right angle bent portion 63B, axial positioning is performed. . Further, the torsion bar hook 58 is sandwiched between the two U-shaped shaft portions 63C and 63D from the left and right sides for positioning in the rotational direction. The upper end side of the torsion bar 62 is a crank-shaped portion 62B, into which the roller 64 is fitted rotatably and slidably in the axial direction from the upper end. Reference numeral 58A in FIG. 4 indicates the torsion bar hook 5.
Recesses 68A and 68B for positioning the rotational direction of the torsion bar 62 formed at 8 are formed in the upper arm 38A of the main arm 32, and represent positioning protrusions that sandwich the torsion bar 32, respectively. The cam plate 66 is connected to the bearing support portion 2
It is a flat plate-shaped member attached to a portion of the upper surface of the door side base 16 facing the door side base 16, and its cam surface 66A is parallel to the central axis of the pipe portion 33. Further, the lift of the cam surface 66A from the center axis of the pipe portion 33 is varied so as to form a moderation interval at an appropriate position when the side door 12 is opened or closed. The roller 64, as shown in FIG.
The cam plate 66 is elastically pressed against the cam surface 66A of the cam plate 66 by a torsion bar 62 so as to be in constant line contact. Further, the roller 64 has upper and lower ribs 64A, and the cam plate 6
6 are sandwiched from above and below, and are rolled into contact with each other, thereby positioning in the vertical direction. Rolling contact portion 64B between the collar 64A of the roller 64
A circumferential grease groove 64C is formed on the inner circumferential side of the groove, and heat-resistant grease is sealed therein.
The durability of roller 64 is increased. A door wire harness 70 for an electric window regulator (not shown) or the like in the side door 12 is located at a position offset downward from a harness hole 72 formed on the front pillar 18 side. The wires are wired in a substantially S-shape while reaching a harness hole 74 formed in the end panel 14 of the side door 12 . Here, the wire harness 70 is attached to the side door 12 of the pipe section 33 in the main arm 32.
Also along the sides, upper and lower control arms 30A, 30B of the main arm 32
It is arranged to pass through the V-shaped part between the two. The wire harness 70 is fixed to a harness clamp bracket 78 protruding from the body side base 20 via a harness clamp 76 at a position near the pipe portion 33 . The harness clamp 76 is made of resin, and holds the wire harness 20 at its annular portion 76A, and its distal end portion 76B is inserted and fixed into a mounting hole 78A formed at the distal end position of the harness clamp bracket 78. There is. Furthermore, the pipe portion 3 in the main arm 32
3, the position adjacent to the wire harness 70, that is,
A resin protector 80 is attached to the vertical gap between the connection portion of the upper arm 38A and the lower arm 38B to the pipe portion 33, and thereby,
This is designed to prevent the paint from peeling off on the pipe portion 33 due to the wire harness 70 coming into contact with the pipe portion 33. As shown in FIG. 4, the protector 80 is a substantially cylindrical member that can be expanded by a vertically extending slit 80C, and has one cutout at each of its upper and lower ends. 80
A and 80B are formed. On the other hand, on the pipe portion 33 side, projections 82A are provided at positions corresponding to the notches 80A and 80B of the protector 80 and at positions corresponding to the slits 80C.
82B, 82C are formed, and when the protector 80 is elastically fitted into the pipe portion 33A, the notches 80A, 80B and the slit 80C engage with these protrusions 82A to 82C to position the protector 80. has been done. Here, as shown in FIG. 3, the front end corner of the inner panel 12A of the side door 12 on the vehicle interior side is located on the inside of the end panel 14 in the vehicle width direction, that is, on the inside of the side door hinge 10 in the vehicle width direction. The door side base 16 is protruded forward from the rear end surface of the door side base 16 on the vehicle interior 84 side, and
A substantially L-shaped weather strip attachment portion 86 is formed in the protrusion 12D. A door weather strip 88 is attached to this weather strip attaching portion 86. On the other hand, a weather strip contacting surface 18B of the front pillar 18 corresponding to the door weather strip 88 is formed offset from the surface 18A toward the passenger compartment 84, so that when the side door 12 is fully closed, the weather strip contact surface 18B The contact surface 18B is adapted to come into contact with the surface of the weather strip 88 on the compartment 84 side. In this case, the corner of the weather strip contact surface 18B, that is, the front-rear direction position of the rear end surface 18C of the front pillar 18 is
Corresponding to the longitudinal position of 6, it is offset forward compared to the normal case. The door side base 16 and the body side base 20 are attached to the end panel 14 of the side door 12 and to the surface 18A of the front pillar 18.
The surface 90 of the door side base 16 facing the end panel 14 has a mounting surface 90A that contacts the end panel 14 and a floating surface 90B that does not make contact.
It is composed of. As shown in FIGS. 9 to 12, this mounting surface 90A is only around the upper and lower bolt holes 16A and 16B in the door side base 16,
The other portion is a floating surface 90B. Moreover, as shown in FIGS. 13 to 16,
Opposing surface 92 in the body side base 20
is the surface 18A of the front pillar 18
The mounting surface 92A that comes into contact with the floating surface 9 that does not make contact with the
It is composed of 2B. This mounting surface 92A is formed only around the upper and lower bolt holes 20A, 20B and the middle bolt hole 20C in the body side base 20, as shown by diagonal lines in FIG. The portion is defined as a floating surface 92B. Next, the operation of the above embodiment will be explained. When the side door 12 is opened from the fully closed state, the main arm 32 swings counterclockwise in FIG. Centered around the rotation center axis 26A, and
The lower control arms 30B each swing counterclockwise in FIG. 3 about the lower rotation center shaft 26B. Since the main arm 32 and the upper and lower control arms 30A and 30B constitute a four-section rotating link, the instantaneous rotation center of the side door 12 changes gradually, and the side door 12 is slid forward while opening to the side of the vehicle body. become. At this time, the upper rotation center shafts 22A, 24
A, 26A, 28A and lower rotation center shaft 22A, 2
2B, 24B, and 26B are aligned on the inclined axes that intersect at one point 10A below, so that when the side door 12 is fully opened, its upper end side tilts outward, making it easier for passengers to get in and out. When opening and closing the side door, the door check mechanism 60
A roller 64 rotatably attached to the torsion bar 62 is rolled into contact with the cam surface 66A of the cam plate 66 as the side door 12 swings (see FIG. 17). The torsion bar 62 that supports the roller 64 is
The main arm 32 at the rolled-up shape portion 62A
Wrapped around the torsion bar hook 58,
Also, since the upper end thereof is a crank-shaped portion 62B, the torsion bar 62 is connected to the side door 12.
As the cam plate 66 swings in the opening direction, it receives a twisting force from the cam surface 66A of the cam plate 66. Therefore, the roller 64 is pressed against the cam surface 66A of the cam plate 66 as a reaction force of the torsional force. Since the distance of the cam surface 66A of the cam plate 66 from the upper rotation center axis 28A is changed as appropriate, according to the change in the lift amount of the cam surface 66A,
The torsion force applied to the torsion bar 62 is changed. Therefore, a sense of moderation is created when opening and closing the side door 12. When the side door 12 is in the fully open position, the stoppers 52A and 52B protruding from the pipe portion 33 of the main arm 32 close the body side base 20.
The protrusions 56A, 56B are brought into contact with the stopper surfaces 54A, 54B, thereby regulating the fully open position. The wire harness 70 is arranged in a substantially S-shape from the end panel 14 of the side door 12 through the inside of the side door hinge 10 to the surface 18A of the front pillar 18.
At a nearby position, the main arm 32 is held by the harness clamp bracket 78 on the body side base 20 side via the harness clamp 76, so when the side door 12 is opened or closed, it is swung around the harness clamp 76, and the main arm 32 is Abbreviation K
Since the wire harness 70 passes through the V-shaped portion where the upper arm 38A and the lower arm 38B intersect, the wire harness 70 passes through the V-shaped portion where the upper arm 38A and the lower arm 38B intersect. is main arm 32, door side base 1
6 or the body side base 20. Further, the wire harness 70 is arranged adjacent to the inner side of the pipe portion 33 of the main arm 32, and a harness protector 80 made of resin is elastically fitted to the projections 82A to 82C of the pipe portion 33. Since the harness protector 80 can come into contact with the wire harness 70, the paint on the pipe portion 33 may be peeled off by the wire harness 70, or the wire harness 70 may be damaged by the pipe portion 33. You can prevent this from happening. In the above embodiment, the side door hinge 10
are four upper rotation center shafts 22A, 24A, 26A, 28A and 22A, respectively, which are spaced apart in the vertical direction.
24B, 26B, 28B, these are supported by one door side base 16 and one body side base 20 that are long in the vertical direction, and a main arm that mainly supports the weight of the side door 12 is integrated in the vertical direction, Moreover, the upper control arm 30A and the lower control arm 30B
Since it is configured as a separate body with a thin shaft, it is possible to obtain sufficient rigidity to support the side door 12 without significantly increasing the weight of the side door hinge 10 and the weight of the side door 12. The attachment and adjustment work of the side door hinge 10 to the side door 12 and the front pillar 18A can be made extremely easy. Further, the main arm 32 integrated in the vertical direction
is arranged on the inside in the vehicle width direction with respect to the upper control arm 30A and the lower control arm 30B, so the main arm 32 can be arranged at the center of gravity of the side door 12 in the vehicle width direction. The load of the side door 12 on the door hinge 10 can be ideally distributed. Therefore, the side door hinge 10 itself does not waste weight, and can provide maximum rigidity with minimum weight. In particular, the main arm 32 is not only integrated in the upper and lower parts, but also has one large-diameter pipe portion 33 that is fitted into the upper rotation center shaft 28A and the lower rotation center shaft 28B. The stiffness can be increased without significantly increasing the overall weight of 32. Here, the pipe section 33
mainly bears the torsional load, and the upper arm 38A and the lower arm 38B, especially the upper arm 38A, bear the load of the side door 12. Further, the main arm 32 is attached to the side door 12.
In the fully closed state, it has a substantially dogleg shape that is convex outward in the vehicle width direction, and is arranged along the shape of the outer surface 18A of the front pillar 18 in the vehicle width direction, so it interferes with the front pillar 18. without any
It can be stored within the space 34 with good space efficiency. Similarly, the upper control arm 30A and the lower control arm 30B are also connected to the side door 12.
When the side door 12 is fully closed, the fender 1 is bent in a dogleg shape that is convex inward in the width direction of the vehicle body, so when the side door 12 is fully open, the fender 1
The side door 12 can be slid forward as far as possible without interfering with the rear end portion 11A of the vehicle. Further, the wire harness 70 is connected to the side door 1.
Since the harness hole 72 on the front pillar 18 side is offset in the vertical direction with respect to the harness hole 74 on the end panel 14 side of No. It has the advantage of being easily absorbed. Further, the bolt holes 16A, 16B and 20A, 20B in the door side base 16 and the body side base 20 are formed at the upper and lower ends of each,
In addition, bearing support portions 17A, 17B and 21A, 2 for supporting the rotation center axis of the four-bar rotation link are provided.
1B is the bolt hole 16A, 16B, 20A,
20B, the side door hinge 10 can be formed as long as possible in the vertical direction, increasing rigidity and effectively dispersing the load of the side door 12. Further, since the bolt holes and the bearing support portions are located close to each other, it is possible to prevent excessive concentrated loads from being applied to the door side base 16 and the body side base 20. Furthermore, the facing surfaces 90 and 92 of the door side base 16 and the body side base 20 that face the end panel 14 and the front pillar 18, respectively, have only the surroundings of the respective bolt holes 16A, 16B and 20A, 20B, 20C. Since the mounting surfaces 90A and 92A are in contact with the surface 18A of the end panel 14 or the front pillar 18, and the other parts are non-contact floating surfaces 90B and 92B, the side door 12 can be mounted by the side door hinge 10. When the automobile is put into a painting process with the parts attached, paint easily enters between the end panel 14 surface of the side door 12 and the surface 18A of the front pillar 18, and the door side base 16 and body side base 20. Furthermore, even when heated in a paint drying oven, since the contact surfaces between the door side base 16 and body side base 20 and the end panel 14 and front pillar 18 are small, these end panels 14 and the front pillar 18 are
There is little hindrance to the temperature rise of 8A, and therefore insufficient drying is suppressed. Further, in the above embodiment, stoppers 52A and 52B for regulating the fully open position of the side door 12 are provided.
are formed at the upper and lower ends of the pipe portion 33 of the main arm 32, that is, at positions close to the bolt holes 20A, 20B, and 20C of the body side base 20, so that the stoppers 52A, 52B are The tendency for the side attachment portion to easily deform is suppressed. Further, a protrusion 56 forming stopper surfaces 54A, 54B that come into contact with the stoppers 52A, 52B.
Since A and 56B are formed on the inner surface of the body side base 20 and the corners of the pair of upper and lower bearing supports 21A and 21B, they reliably absorb the impact force generated by contact with the stoppers 52A and 53B. be able to. Further, the door check mechanism 60 in the above embodiment
As mentioned above, the torsion bar 62 and the roller 6
4 and a cam plate 66, compared to conventional door check mechanisms, there is no malfunction caused by adhesion of paint, and
It can withstand the high temperature atmosphere of a paint drying oven, and therefore the side door hinge 10 can be assembled before painting. Further, while the conventional door check is installed in a place where sand, mud, etc. are difficult to enter, in the above embodiment, it is installed in a space 34 where water, sand, mud, etc. are relatively easy to enter. The door check mechanism 60 in this embodiment has the advantage that it is less susceptible to adhesion of water, sand or mud. In particular, even if sand or mud adheres between the roller 64 that constitutes the door check force and the cam surface 66A of the cam plate 66, the roller 64 may be displaced from the cam surface 66A by being bitten. Therefore, the opening/closing operation force for the side door 12 does not increase, and no malfunction occurs. In particular, a grease groove 64C is formed inside the roller 64, and heat-resistant grease is sealed therein, so that the roller 64 can be kept smoothly rotated.
Can be passed through a paint drying oven with grease still sealed. The roller 64 is attached to the crank-shaped portion 62B of the torsion bar 62 so as to be slidable in the axial direction. The roller 64 absorbs the mutual assembly error and manufacturing error of the cam plate 66 and torsion bar 62 attached to the bearing support part 21A, and the roller 64
can come into contact with the cam surface 66A. In particular, the roller 64 has a pair of collars 64 above and below it.
A, which is designed to sandwich the cam plate 66 from above and below, so that the cam surface 66A of the roller 64
This will ensure that the relocated status is maintained. Furthermore, since the cam plate 66 is a flat member mounted on the bearing support portion 21A perpendicular to the upper rotation center axis 28A, the cam surface 66
A is the upper rotation center axis 28A, that is, the main arm 32
It can be easily formed parallel to the rotation center line of the pipe portion 33 in . Therefore, when the side door 12 is opened or closed, the roller 64
can always slide against the cam surface 66A under constant conditions, and both will not be tilted or twisted. Furthermore, the pipe portion 3 in the main arm 32
3 is in a hollow state, so the rigidity of the main arm 32 can be greatly increased without significantly increasing the weight. Furthermore, the upper rotation center shaft 28A and the lower rotation center shaft 28B are separated from each other. Since the member is inserted into the fitting holes 33A and 33B at the upper and lower ends of the pipe section 33, weight reduction and ease of assembly are achieved compared to the case where the rotation center shaft is integrated in the vertical direction. can be improved. Further, in the above embodiment, the front end corner of the inner panel 12A of the side door 12 on the side of the vehicle interior 84 is protruded forward to form the weather strip attachment portion 86.
The door weather strip 88 is attached here, and the rear end surface 18C of the front pillar 8 on the body side is attached to the weather strip attaching portion 8.
A weather strip abutting surface 18B is formed corresponding to the door weather strip 88, and this abuts against the door weather strip 88 in the width direction of the vehicle body.
Space 34 where the side door hinge 10 is arranged
can be configured small, and the front pillar 18
Since the rear end surface 18C of the vehicle is offset further forward than usual, the ease of getting on and off the vehicle is improved. Furthermore, the side door hinge 10 using a four-bar rotation link mechanism can have a sealing structure that matches the opening/closing locus of the side door 12, and therefore, it is possible to reliably seal when the side door 12 is fully closed. . In the above embodiment, the main arm 32 is integrated with the pipe portion 33 and the upper arm 3 in the vertical direction.
8A and a lower arm 38B, the present invention is not limited thereto. It is sufficient if it is rotatably supported by the lower rotation center shafts 24B and 28B. Therefore, for example, the main arm 32 may have a frame shape by providing a pipe portion that fits into the upper rotation center shaft 24A and the lower rotation center shaft 24B on the side door 12 side. However, when the main arm 32 is formed into a substantially K-shape as in the embodiment shown in FIG. 1, there is an advantage that interference with the wire harness 76 can be avoided and the weight can also be reduced. Further, in the above embodiment, the door check mechanism 6
The cam plate 66 in 0 has a flat plate shape, and by being attached to the upper bearing support portion 21A of the body side base 20, the cam surface 66A is parallel to the rotation center axis of the pipe portion 33 of the main arm 32. However, regardless of the shape of the cam plate 66, it is sufficient that the cam surface 66A is parallel to the rotation center axis of the pipe portion 33. 66 does not necessarily have to have a flat plate shape. Alternatively, the cam surface 66A may be formed directly on the upper bearing support portion 21A itself, for example. Further, as shown in FIG. 18, the cam plate 66 may be provided on the upper bearing support portion 17A of the door side base 16,
As shown in FIG. 9, the torsion bar 62 may be attached to the upper control arm 30A and the lower control arm 30B, and the cam plate 66 may be attached to the bearing support portion 21A around the upper rotation center axis 26A on the body side. .

【Effect of the invention】

Since the present invention is configured as described above, the present invention can be applied to an automobile side door hinge using a four-bar rotation link.
The excellent effect is that it allows for easy installation and adjustment work without significantly increasing the weight of the side door or the side door hinge itself, and that it can provide sufficient rigidity to support the side door. has.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing an embodiment of a side door hinge for an automobile according to the present invention, FIG. 3
The figure is an enlarged sectional view of the main part of Figure 2, Figure 4 is an exploded perspective view showing the main arm and harness protector in the same embodiment, and Figure 5 is the central axis of rotation of the main arm in the same embodiment. 6 is a perspective view showing a bush fitted with the rotation center shaft in FIG. 5; FIG. 7 is a cross section showing the attachment state of the rotation center shaft on the control arm side in the above embodiment. 8 is a cross-sectional view showing the main parts of the door check mechanism in the same embodiment, FIG. 9 is a side view showing the attached state of the door side arm in the same embodiment, and FIGS. 10 to 12 are FIG. 13 is a side view showing the mounting state of the body side base in the above embodiment, and FIGS. 14 to 16 are
X-X line to X-X line view of the figure, No. 17
This figure is a plan view showing the side door hinge of the above embodiment when the side door is opened and closed, and FIGS. 18 and 19 are perspective views showing other embodiments of the door check mechanism according to the present invention. 10...Side door hinge, 11...Front side fender, 12...Side door, 14...
End panel, 16...Door side base, 18
...Front pillar, 18A...Surface, 20...
Body side base, 22A, 24A...Upper rotation center axis (door side), 26A, 28A...Upper rotation center axis (body side), 22B...24B
...Lower rotation center shaft (door side), 26B, 2
8B...Lower rotation center axis (body side), 30
A...Upper control arm, 30B...Lower control arm, 32...Main arm, 3
8A... Upper arm (main arm), 38B...
...Lower arm (main arm).

Claims (1)

[Claims] 1. An automobile of a double arm type using a four-section rotating link, in which one of the double arms is the main arm that mainly supports the load of the side door, and the other is the control arm that mainly controls the movement of the side door. In the side door hinge, the door side base is formed to be elongated in the vertical direction along the end of the swing base end of the side door and is attached to the end, and a surface on the body side adjacent to the end. a body side base formed to be elongated in the vertical direction along the body side base and attached to the surface; four upper rotation center shafts supported at at least two positions each on the upper and lower parts of the door side base and the body side base; four lower rotational center shafts aligned below the upper rotational center shaft, the control arm having:
Among the upper rotation center shafts, an upper control arm whose both ends are rotatably connected to the rotation center shaft of one of each of the body side base and the door side base, and an upper rotation center shaft at both ends of the upper control arm. a lower control arm whose both ends are rotatably connected to the aligned lower rotation center shafts, and the main arm is connected to the other two upper rotation center shafts and the other two lower rotation center shafts, and 1. A side door hinge for an automobile, comprising a vertically integral member whose both ends in the width direction are rotatably connected.